Most patients with GDM may not have any symptoms attributable to the GDM per se. Features such as polyuria and lethargy often associated with diabetes may be related to the pregnancy. Maternal morbidity may be in the form of increased risk of pre-eclampsia, polyhydramnios and increased incidence of Caesarean Section. Women with GDM are at increased risk of developing diabetes mellitus in later life. The Toronto Tri-Hospital Gestational Diabetes Project, a prospective study evaluating both maternal and foetal outcomes with increasing degrees of glucose intolerance has shown significant association between increasing glucose intolerance and increased incidence of caesarean delivery, preeclampsia and length of maternal hospitalisation (13).